Pump-drain.



N0. 806,330. PATBNTED DEC. 5, 1905.

E. E. BRVIN & A. J. KONANTZ.

' PUMP DRAIN.

APPLICATION FILED MAR.24, 1905.

UNITED STATES PATENT OFFICE.

ERNEST E. ERVIN AND ANTON J. KONANTZ, OF ERIE, COLORADO.

PUMP- DRAIN.

Patented. Dec. 5, 1905.

- Application filed March 24, 1905. Serial No. 251.898.

To all whom) it may concern: V

Be it known that we, ERNEST E. ERVIN and I ANTON J. KONANTZ, citizens ofthe United States, residing at Erie, in the county of Weld and State ofColorado, have invented certain new and useful Improvements in Pump-Drains; and we do declare the following'to be a full, clear, and exactdescriptionof the invention, such as will enable others skilled in theart to which it appertains to make and use the'same, reference being hadto the accompanying drawings, and to the figures of reference markedthereon, which form a part of this specification.

Our invention relates to improvements in automatic pump drains ormechanism for draining the water from the stand-pipe connected with thepump in order to relieve the pump from the pressure of the column ofwater in the stand-pipe, thus making it possible to start the pump,which could not be done against the water column of the stand-pipe.

Our invention consists of a valve arranged to close automatically duringthe operation of the pump, the said valve closing an openingcommunicating with the stand-pipe and connecting the samev with acylinder in which is located a piston, which when actuated by the pumpoperating fluid closes the valve.

When, however, the operation of the pump ceases and the operating fluidceases to act on the piston to holdthe valve in the closed po sition,the pressure ofthe column of water in the stand-pipe automatically opensthe valve and allows the water from the stand-pipe to enter the cylinderand escapetherefrom by way of a suitable outlet. This cylinder and valveare connected with the'lower portion of the stand-pipe and by virtue ofthe operation of the valve, as just explained,- all the water in thestand-pipe and above the valve is allowed to drain out automatically assoon as the pump ceases its operation.

The same reference characters indicate the same parts in both views.

Let the numeral 5 designate the pump mechanism inits entirety, the sameincluding the engine-cylinder 6, the pump-cylinder 7, and the necessarymechanism employed in connection therewith, which it will not benecessary to describe in detail in this specification, as nothing isclaimed thereon.

Let the numeral 8 designate a pipe or conduit connected with anysuitable source of operating fluid. This pipe 8 is connected by a branch9 with the fluid-chest 10 of the cylinder 6. A branch 12 also leads fromthe pipe 8 to one extremity of a cylinder 13, which will for conveniencebe termed an auxiliary. This cylinder is provided with a threaded nipple14, which enters a threaded opening formed in the Stand-pipe15 near itslower extremity. A suitable seat 16 is formed around the inner extremityofthe opening 17 which connects the stand-pipe with the auxiliarycylinder. This seat is adapted to fit a valve 18, mounted on a stem 19,the latter being connected at its extremity remote from the valve with apiston 20, which fits closely within the auxiliary cylinder. The valveextremity of the stem 19 is provided with an extension 21, which entersthe nipple l t and forms a guide to insure the proper seating of thevalve.

When the valve is open, (see Fig. 1,) the piston 20 will be in theposition shown in said figure. Assuming now that the parts are in thisposition, it will be evident that the entire column of water above thenipple 17 will flow out of the stand-pipe into the cylinder 13 'andthence out of the cylinder through an outlet 22, connected with thecylinder at its valve extremity. After the stand-pipe is thus drainedthere will be sufiicient water in the lower part thereof, which isconnected with the pump, for purposes of priming the pump; but theweight of this water will not be suflicient to retard'or prevent thestarting of the pump, as would be the case if the stand-pipe containedthe entire column of water.

Now when. it is desired to start the pump a valve 23, connected with thefluid-pipe 8, is

opened, allowing the fluid to pass simultaneously to the fluid-chest 10and the cylinder 13, the fluid entering the said cylinder in the rear ofthe piston 20 and acting-on the latter to close the valve 18. Now duringthe operation of the pump it is evident that the water will passupwardly through the stand-pipe 15 and cannot escape into the cylinder13, since,

the valve 18 is closed. As soon, however, as the pump stops and thepassage of fluid to the rear extremity of the cylinder 13 is cut off thepressure of the water inthe stand-pipe 15 will act automatically on thevalve 18 to open the latter or move it to the position shown in Fig. 1,when the water will be drained from the pipe 15, as heretoforeexplained.

Having thus described our invention, what we claim is 1. In adevice ofthe class described,the combination with a pump and its stand-pipe, of areceptacle communicating with the stand-pipe by means of a suitableopening, a valve for controlling said opening, a piston located withinthe receptacle and connected with the valve, and means forsimultaneously delivering operating fluid to the pump mechanism and tothe receptacle in the rear of the piston whereby the latter is actuatedto close the valve, substantially as described.

2. The combination with a pump and the stand-pipe connected therewith,of a cylinder communicating with the lower portion of the stand-pipe bya suitable opening, a piston located in the cylinder, a valve connectedwith the piston, and adapted to close the opening between the stand-pipeand cylinder, and means for delivering operating fluid simultaneously tothe cylinder and pump mechanism, the said fluid entering the cylinder inthe rear of the piston and acting on the latter to close the valve, thevalve extremity of the cylinder being provided with an outlet for theescape of the water from the stand-pipe when the cylinder-valve is open.

3. In mechanism of the class described, the combination with a pump andthe pipe to be drained, of a cylinder connected with thepipe at asuitable point and communicating therewith by a suitable opening, avalve located in the cylinder for controlling said opening, a pistonalso located in the receptacle and connected with the valve, and meansfor introducing operating fluid to the pump and the cylinder in the rearof the piston whereby the latter is actuated to close the valve.

In testimony whereof we aflix our signatures in presence of twowitnesses.

ERNEST E. ERVIN.

ANTON J. KONANTZ.

Witnesses:

WILLIAM O. HARMAN, RICHARD THOMAS.

